How accurate are the material takeoff and cost calculations?

Calculations are grounded in industry-standard engineering formulas (such as compacted density multipliers, ASTM standards, and CSI MasterFormat divisions), with customizable local material unit costs and compaction waste factors.

What waste allowance factor should be added to material orders?

For commercial and residential trade installations, standard engineering practice recommends including a 5% to 10% material waste and compaction contingency factor.

Can I export these takeoff sheets for client bidding?

Yes, you can export full itemized material schedules and bid breakdowns directly to CSV or printable takeoff summaries.

Commercial Air-to-Water Modular Heat Pump Chiller Sizer

❄️🔥 1. Thermal Capacity & Low-Ambient Design

Peak Cooling Capacity (Tons)

Peak Heating Demand (MBH)

Winter 99.6% Design Ambient Temp (°F)

Compressor & Refrigerant Tech

💧 2. Hydronic Loop, Glycol & Operation

Propylene Glycol Concentration (%)

Winter Hot Water Supply Temp (°F)

Equivalent Full Load Hours (EFLH/yr)

Displaced Boiler Efficiency (% AFUE)

💵 3. Tariffs, CapEx & Incentives

Natural Gas Rate ($/Therm)

Electric Rate ($/kWh)

Turnkey CapEx per Ton ($/Ton installed)

Utility Clean Heat Rebate ($/Ton)

IRA EPAct §179D Energy Deduction

20-Year Net Value Created (NPV @ 7%)

$412,400

Internal Rate of Return (IRR): 32.8% • Simple Payback: 3.0 Yrs

Heating COP @ Design Temp

2.48 COP

148 Tons @ -10°F Ambient

Annual Operating Savings

$58,400/yr

Boiler Gas Displaced + Avoided Tower

Turnkey Gross CapEx

$315,000

$1,750 / Ton nominal cooling

Total Clean Energy Incentives

$141,750

Rebate: $81,000 • 179D: $60,750

📊 Modular Plant Schedule & Decarbonization

Component / Metric	Design Output	Engineering & Financial Impact